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  <author_name>int128</author_name>
  <author_url>https://blog.hatena.ne.jp/int128/</author_url>
  <blog_title>GeekFactory</blog_title>
  <blog_url>https://int128.hatenablog.com/</blog_url>
  <categories>
    <anon>groovy</anon>
  </categories>
  <description>Groovyでジェネリクス付きのtraitを使う場合にちょっとハマったのでメモを残します。 前提 Groovy 2.3.6 JDK 7u72 例 下記のコードを実行してみます。 @groovy.transform.Immutable class Person { final String name final int age } trait NamedMap&lt;T&gt; { boolean add(T item) { put(item.name, item) ? false : true } } def peoples = [:] as NamedMap&lt;Person&gt; assert peoples…</description>
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  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2014-12-30 23:57:46</published>
  <title>Use trait with generics in Groovy</title>
  <type>rich</type>
  <url>https://int128.hatenablog.com/entry/2014/12/30/235746</url>
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